PDF malware analysis — malicious · 721eea444b7a8793

MALICIOUS

PDF

41.1 KB Created: 2021-05-12 12:40:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: c08b2c3917e2826ef1c74d2165754b15 SHA-1: 0781694d2d6e788d21b67d9f07f8f7442bc24133 SHA-256: 721eea444b7a8793d2ebf9271eccdba2f784e2b430d354d40be42878a60a4c1d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://netcdn.xyz/app/479516143/is-java-minecraft-free-game-hack PDF link annotation
- https://www.cgalgeria-dubai.com/userfiles/files/free-hair-roblox_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/roblox-free-skin_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/kachifpro_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-apk_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/114-hacks_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004a1d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A1D	23820 bytes
SHA-256: `0a1e736da557031e974a32e34808d132e74e70d356b8d7b72978444caf8c513e`
`font_01_sfnt_off00007f6b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F6B	17848 bytes
SHA-256: `2812ffd3b6569d14fce824048316eedc6e3758fbb22d1025bbcec1b053185b7d`

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